My customers are contracted for 26 weekly cuts. Whether it grows or not, they pay. Of course there is no way the times skipped would ever catch up to all the double and triple cuttings that go on in the spring when it grows 2 inches a day. I only skipped a few this year with the drought we had. I always gave the customer the option to have me cut or not. I recommended not some weeks but they just gotta get their moneys worth. They don't seem to think it's a big deal when I'm there twice as long in spring. I don't see any of them offering me any extra money because it grows so fast. But they sure want it cut when I'm blowing brown dust around in circles. Whatever!

I'am wanting to try to include this with my mowing agreemnets for next year. My gut feeling is my clients will freakout,I'm still in the beginning stages of getting this all ready for next year.My other thinking for next year is some diff payment options(monthly,weekly,bi-weekly).Any ideas?????

I charge by the month to be paid 12 months a year regardless of weather or number of cuts. It might not work as well outside of Florida, but I do not have any problem with it here. Sometimes in winter I may go for 4 - 6 weeks without cutting.

The mowing is done "as needed" in my setup. If it is growing really fast, I will cut it every 4-5 days. And I do for most in the spring. I did lose a ton of potential income this summer with the lack of mowing, but when I look back at the $$$ put in the bank april thru june, it evens out nicely.
I try to avoid the term "weekly" service. In the wet spring, the grass may need 4" cut off after 7 days. Then I am stuck with double cutting or hauling 1500 lbs of grass every day.
People know that it needs to be cut 2x a week. They don't want to do it. So we do. But we need to be paid for what we do. I was able to trim hedges on many properties during the summer and I did not run over 1 dormant lawn.